Hand-operated cutting and/or gripping device



Nov. 3, 1925.

A. H. F. PERL ET AL l HAND OPEHATED CUTTING AND /OR GRIPPING DEVICE Filed Maly 29. 1922 2v Sheets-Sheet l Z' 510er) for@ Nov. 3, 1925- AQH. F. PERL E1' AL HAND OPERATED CUTTING AND/ on GMPPING DEVICE Fned Mayas. 1922 2 sheets-sheet 2 Patented Nov. 3, 19.25.

, ist@ UNITED STATES PATENT QFFIQE."

ALBERT HENRY FRANKS PERL .AND` RICHARD HEMMINGS CARTER, OF LADBROKE GROVE, ENGLAND.

HAND-OPERATED CUTTING AND/OR- GR-IPPING'DEVICE.

Application filed May 29, 1922.

T0 all whom, t may concer/1t.'

lie it known that we. Acenn'i HENRY 'Fnimits Pina. and Bierman HnMMiNGs Can'rnr., subjects of His Majesty the King of England, and residents of Ladbroke Grove, in the county of London, Kingdom of England, have invented certain new and useful Improvements in or Relating to Hand-(')perated Cutting and/or Gripping Devices, of which the following isa speciieation.

This invention relates to hand-operated cuttino' and/or gripping devices and has for its object to provide an improved handnoperated device, more especially intended for use in opening tin and like containers.

According to the present invention the device comprises two levers either of which may be an operating lever, which levers are pivotally interconnected by angulai'ly posed links one of which forms an o'liset pivotally connected to the aforesaid levers, the said offset link beingi'provided with a cutting or gripping edge which is adapted to co-operate with the adjacent lever so as lto effect cutting or gripping, the arrangement of the parts being such as to give an increased leverage as compared to a pair of scissors or pliers having the same overall length and the saine Vlength of cutting or gripping ljaw as the afoi'esaitl-cutting or gripping device. The construction and arrangement is such that when the device is opera-ted to effect cutting or gripping, the two operating levers diverge at the cutting or gripping end from each other to elfect cutting and/or gripping, the return or inoperative movement of the operating levers being effected byv means of a sprino.

Inorder that the invention may be clearly understood reference is made to the accompanying drawings, which show by way .of example constructions in accordance with the present invention; but we do not limit ourselves to thc precise constructions hereinafter described and illustrated in the accompanying drawings. A

Figure l is` a plan of the device showing the operating levers in the inoperative or quiescent position;

Fig. 2 is a plan of the device showing the operating lever in the cutting position;

Fig. 3, drawn to an enlarged scale, is an end view of the device looking in the direction of the arrow A, Fig. 2; i

Serial No. 564,587,

Figs. al, 5, and 6 are plans of inodiiied forins hereinafter described; Y i

Fig. 7 is a plan view of part of the device as adapted for gripping purposes;

Fig. shows a modiiied forni wherein the device is formed of doubled over metal; and Figs. 9, l0, and ll show modified constructional forms of piercingdevices.

Referring to the drawing the device comprises two operating levers l and 2 pivotally interconnected by angularly disposed links 3 `and il. One of the links 3, i. e., the outer link, which forms a pivoted oifset from the lever l is extended to form a cutting jaw having a cutting edge 5,the said jaw extending forwardly of the device and outwardly of the end of the adjacent lever. rlhe link 3 carrying the extended portion which acts a cutting jaw thus forms a bell-crank lever. The end of the adjacent lever 2 which co-operates with the cutting jaw of the bell-crank lever is provided with a suitable projection 7 or projections so as to act as a fulcruin or fulcrunis and/or a guide when operating the device to effect cutting. The bell-crank lever 3 is pivotally connected at 8 to the co-operating cutting and/or gripping lever 2, the other link 4: being pivotally connected to the lever 2 at a point S forward of the pivotal connection 8 of the bell-crank lever to the lever 2. The bell-crank lever 3 may be provided with a plurality of holes 9 and the pivotal pins 8 and 9 connecting the said bell-crank lever 3 to the adjacent levers 2 and 1 may be removable from their holes and may be inserted in other holes 9 so as to provide for adjustment of the said bell-crank lever 3 relatively to the cutting and/oi' gripping lever 2.4 Holes 11 and l2 may also be pro- 9 vided in either the lever l or 2, or both levers 1 and2, for adjustment purposes.

If so desired, the lever 1, Fior. 4, which carries the bell-crank lever, may be provided with a number ofholes l2 so that the end 13 of the interconnecting link 4t may be adjusted to any desired position within the range of the holes disposed along any desired length of the non-cutting and/or gripping lever. The lever l may be provided with a suitable projection 14; to facilitatethe entry of the point of the cutting j aw' into a tin or like container so as to initiate the cutting operation. In the construction shown in Figs. l to, both inclusive, the op-V 110 erating levers 1, 2 are formed of duplicate metallic strips interconnected as by rivets or other suitable means as indicated at 18. The link s is also formed of duplicate strips through and between the strips of which the bell-crank lever passes, the strips of the link 4 being pivotally connected at their ends and to the levers 1, 2.

Fig. 5 shows a modified constructional torni wherein the arm 3 of the bell-crank lever is provided at its end with apiercing device formed by an arcuate recess 22. The outer edge 23 ot' the arcuate recess ends in a point 2i and the inner edge 25 of the arcuate recess is somewhat rounded as shown. The device may thus be used to effect piercing of the lid of a tin or the body of the tin to allow of the subsequent insertion in the hole thus made of the cutting jaw 5. The two levers 1, 2 in this construction are maintained apart by a spring 26 which bears on the .connecting arm of the bell-crank lever, the said spring being subsequently passed round or guided by a rivet 27 and thereafter coiled round the rivet 2S.

In F ig. 6 which shows a modiiied torni of piercing device and` also a hook arrangenient'tor retaining the levers 1, 2 in inoperative position, thev piercing device, which is shown drawn to an enlarged scale in Fig. 9 comprises two curved projecting members 29 and 3() on the end ot' the bell-crank lever adapted to simultaneously bearwith their pointed edges 31 and 32 on the lid ot thc tin or on the body thereof. The arm between the projections 29 and 30 is beveled oit to form a sharp edge 33 which is adapted to be utilized as a piercing point. This piercing device, as Shown in Fig. G, is formed integral with the arm ol the bell-cra-nklever butit may be pointed out that the integral formation ot' the piercing device with the arm is not absolutely necessary. The two levers 1, 2 may be retainedinthe inoperative position by a hook pivotally mounted as at on the lever 1 andadapted to engage a rivet 3G on the lever 2. Thev hookis held in the retaining position by a spring wire 37 one end of which bears on a flat it'ace 3S on the hook member, the other end of the spring wire bearing on the arm or' the bell.- crank lever. The spring WireY 37 is bent round inside a rivet 39 as shown so that the said spring wire may be retained in position. The hook 34- when the device is in use occupies the position shown in dottedv lilies in lig. G. In this position the hook acts as a stop for the hand and also facilitates the forward feed ot the cutting device as a Win51@- llVhen it isk desired to use the implement asY a gripping device such, for example, as gripping 'nuts' or other polygonal bodies, the edge lof the bell-crank lever which was previously formed as a cutting edge and the co-operating adjacent edge ot' the cutting and/or gripping lever may each be p rovided with a suitably shaped recess having plain or serrated edges as shown at 19,20, Fig. 7, so as to engage the nut or other polygonal body for gripping purposes. It desired a plurality o't such recesses may be used so as to tit different sized objects. In all the constructions, the operating levers are actuated against the action of a spring 21 which is connected at its ends to the respective operating levers.

It desired, the cutting and/or gripping lever 2 and also the non-cutting and/or gripping `lever 1 may be formed Jfrom a sheetmetal blank doubled on itself as shown in Fig. 8, and the interconnecting link et which is also iorined of duplicate metallic strips, and the bell-crank lever 3 may be disposed therebetween. The forward end o't the cutting and/or gripping lever 2 is preferably open at both edges as at 15, 16 to allow ot the operation ot the bell-crank lever. The movement oi" the bell-crank lover .may be limited by stops 8 and 17 provided at thc forward end `ot the levers 2 and. 1 which stops form, in the construction shown, the pivotal connections ot the link Llto the levers 1., 2.

A further modified torni ot piercing device is shown in Fig. 10.' In this construction the arm of ,the bell-cra1iklever is as before provided with two projecting members 29, 30 bntthe pointed member disposed between these two prongs is bent lirst downwardly trom the plane of the arm and thereatter in an upward direction.

It' so desired the piercing device may be provided as a removable attachment to the cutting device. In such 'form the piercing device is shown in perspective in Fig. 1l and the position ot its attachment to the cutting deviceis shown in dotted lines in Fig. 5. 7l-ien this torni ot piercing device is used the formation oi? piercing device 22, 23, 24V and 25 at the end of the bell-crank lever 3 in Fig. 5 is omitted. This piercing device. shown .in Fig.v 11, comprises a flat piece ot metal 40 having an arcuate recess l-l, a piercing pin 4:2, and a `tulcrum point 43. lt should be noted that the formation, contour, orsliape ol2 this arcuate recess and ab so the distance between the points l12 and l13 are such that the point 43 acts as a fulcrum point whilst the point 4t2, acts as a piercing point, so that in the action o1 piero ing, the plate 40 is swung as on a pivot on the point 43 Whilst the point 42 pierces the metal of the lid ot' the tin or the body thereof and severs the metal in. a direction towards the point 43. The plate et() may be retained in position on thel lever 1 by the rivets 44,. l which are adapted to pass through the holes 46, 47 in the piercing plate. l

Cil

lOO

A device such as hereinbe'tore described, when inade ot doubled-over metal or ot interconnected strips and intended for cutting purposes, eli'ects cutting et the tin and like container in such manner that the cut edge spreads or is 'forced outwardlv7 by the cntting action thereby preventing tin and other particles ott the eut metal :falling into the container.

What we claim is:-

l l. A `hand operated device, comprising two operating levers, a link pivotally connecting said levers to canse their operative ends to move apart, and an angle formed link pivotally connected to the operative end of one ot the levers and pivotally connected to the other lever remote from the operative end, said angle link having a part to `cooperate with the -forward portion of one ot the levers.

2. A hand operated device, comprising two operating` levers, a straight link connecting said levers remote troni their operative ends, an angle link pivotally connected to the operative end of one of the levers and pivotalli7 connected to the other ot' said levers remote from the operative end, said angle link having a portion thereot 'lornied to provide a cutting edge for cooperation with one oit the lovers. Y

3.1i hand operated device, comprising two operating levers, a itulcruin link connecting the levers remote iroln their ends, and an angle link connected to one of the levers in advance oit the lulcruin as a leverage point and connected to the other ot said levers in rear ot the tulcruin to provide a 'lfulcruni ilor said angle lever, that portion of the angle lever in advance of its tulcruni cooperating with one of the levers in advance ot the lever fulcruin for cutting purposes.

el. A hand operated device, con'iprising two operating levers, a link providing` fulcruins for said levers remote `trom their operative ends, and a member fulernined on one of said levers and operated through connection with the maximum leverage point oit the other of said levers, said member being formed in part :l'or cutting cooperation with one ot the levers.

ik hand operated device, coinprisii'ig two independentoperating levers, a link connecting said levers rearwardly of their forward ends, a second link connected to the Vlorward end olf one or' said levers and connected to the second lever rearwardly of the connection o1 the iirst mentioned link thereto, said second le fer having a portion adapt-ed to cooperate with one of the levers when the tree ends ot the levers are moved toward each other.

G. A hand operated device, comprising two operating levers, a straight link having adjustable pivotal connection with the levers rearwardly oit the forward ends thereot', a bell crank link having adjustable pivotal connection with the levers and crossing the lirst mentioned link, a portion or said bell crank link serving for operative cooperation with one ot' the levers when said levers are operated.

i". In a hand-operated cutting or gripping device, the combination of a pair ot' operating levers, two links pivotally interconnecting said levers, said links being angularly disposed relative to each other, each link being pivotally connected with each operatinglever, one olf said links being connected tothe .tree end ot' one of said levers and provided with. an offset portion adapted to cooperate with the other operating lever to receive the work between them.

8. In a hand-operating cutting or gripping' device, the combination of a pair of operating levers, two links pivotally interconnecting said levers, said links being angular-ly disposed relative to each other, each link being pivotally connected with each operating lever, one of said links being connected to the tree end Ioit one ot said levers and provided with an offset portion having a cutting edge adapted to cooperate with the other operating lever to receive the work between thein to eiiect cutting.

S). In a hand-operating cutting or gripping device, the combination of a pair olf operating levers, two links pivotally interconnecting said levers, said links being angularly disposed relative to each other', each link being pivotally connected with each operating lever, one of said links being connected to the :tree end ot one of said levers and provided with an offset portion having a cutting edge adapted to cooperate with the other operating lever to 'receive the work between them to ellect cutting, the arrangement and interconnection of the parts being such that the operating levers diverge at the cutting end oit the device when the device is operated to effect cutting.

i0. In a hand-operated cutting or gripping device, the combination of a pair ot operating levers, an offset link pivotally connected with one ot said levers, the said oliset link being formed as a bell crank lever havin-g a cut-ting edge adjacent the other operating lever and pivotally con nected adjacent its apex to the said Operating lever, a second link pivotally connected with said last mentioned lever forward of the apex of the bell crank lever and pivotally connected to the lever at any suitable point thereof.

1l. In a hand-operated cutting or gripping device, the combination of two operating levers, two links pivotally interconnecting said levers, each link having pivetal connection with each operating lever and one ot the links forming an offset bell iii ylill) crank lever pivotally connected to one of the operating levers7 the operating lever adjacent the cutting edge of the bell crank lever being pivotally interconnect-ed to the operating lever carrying the bell crank lever so that when the device is operated the two operating levers diverge at the Work engaging end from each other While the cutting edges of the oliset link and the adjacent lever converge to cliect cutting or gripping, and spring means for returning the operating levers to inoperative position.

12. A hand-operated cutting or gripping device constructed as set forth in claim 1 in which each operating lever is formed of duplicate metallic strips suitably connected with one another. l v

18. A hand-operated cutting or gripping device in accordance With claim 3, Where in the olfset portion which is formed as a bell crank lever is provided with holes for adjustment.

14. A hand-operated cutting or gripping device constructed as set forth in claim 1 in which one of said operating levers is provided With a plurality of holes for adjustinent.

15. A hand-operated cutting or gripping device constructed as set forth in claim l in which one of said links is provided with a pluralityv of holes for adjustment.

16. A hand-operated cutting or gripping device constructed as set forth in claim 1 in which one of said operating levers and one of said links are provided with a plurality of holes for adjustment.

In testimony whereof We have hereunto signed our naines.

ALBERT HENRY FRANKS PERL. RICHARD HEMMINGS CARTER. 

